Python 3.11 introduced (PEP 657), which fundamentally changed how developers debug code. Instead of pointing to a single line, tracebacks now include ^ markers that highlight the exact expression causing the error.
Some research papers that might be of interest: python 3.11
async def main(): tasks = [risky_task("A", True), risky_task("B", False), risky_task("C", True)] try: results = await gather( tasks, return_exceptions=False) except ValueError as eg: for exc in eg.exceptions: print(f"Handling: exc") Python 3